Sansui D 65 BW Service Manual

Page 1

SERVICE MANUAL

STEREO DOUBLE CASSETTE DECK

CAUTION

1. Parts identified by theAsymbol on the schematic
diagram and the parts list are critical for safety.
Use only replacement parts that have critical charac-
teristics recommended by the manufacturer.

2. Make leakage-current or resistance measurements
to determine that exposed parts are acceptably in~
sulated from the supply circuit before returning the
appliance to the customer.

Sansui
SANSUI ELECTRIC CO., LTD.

-653W

'SPECIFICATIONS

. 4-track/2»channel system
. 4.8 cm/sec.

Track forma
Tape speed.
Heads
Rec/play head
Erase head.
Motor ........

. HlGH~Bs hard permalloy
. Doublevgrap HICH»B§ ferrite
. Electronically controlled DC
motor X 2
Reels: DC Motorxz
Wow/flutter .................... 0.06% max (WRMS)
Fast forwarding (rewinding) time
.Approx. 85 sec.
(for 060 tape)
Frequency response (-20 VU recordinyplayback)
Normal tape (LH) ....... 20 to 15,000 Hz
(30 to 14,000 Hzt3 dB)
Chrome Tape ............ 20 to 16,0)0 Hz
(30 to 15,000 Hzt3 dB)
. 20 to 17,000 Hz
(30 to 16,000 Hzt} dB)

Metal Tape...

Erasure rate (metal tape)
.................................. 70 d8 min (1 kHz)
Recording bias frequency

........... 85 kHz
Input sen rty/impedance
LINE IN (REC) .......... 150 mV/47 kohms

Signal to noise ratio (Record/Playback)
Metal Tape (without Dolby Noise Reduction)
............................. better than 54 dB
(With Dolby Norse Reduction Effect)
DOLBY "5 NR... better than 64 dB
(above 5 kHz)
Power requirements
Power voltage ............. 120/220/240V (50/60 Hz]
For U.S.A. and Canada
..... 120V (60 Hz)
Power consumption 20 watts

Dimensions .. 430 mm (16»15/16") W
112 mm (4-7/16') H
221 mm (6-3/4) D

Weight ............................ 3.9 kg (8.6 lbs.) net

. um... and spedllnliom whied It: changes without noriu lot im~
pmvemellls.

- Noise reduction mum manufactured under "(um horn Dolby laborato-
ries licensing (upon-ion.
Dolby ma the double 0 xymbd are rude mm of Dolby laboratories
lltemlng Corporation.

Page 2

D-GSBW

CAUTION

1. The symbols, UL, CSA, SA, as, UK. EU, AS and XX (EXPORT) on
the parts list and the schematic diagram mean followings respectively.

UL... .. Manufactured for U.S.A market.
(Underwriters Laboratories approved model.)

CSA Manufactured for Canadian market.

SA... .. Manufactured for South African market.

BS. UK . .. Manufactured for United Kingdom market.

EU .. .. Manufactured for European market.

AS... .. Manufactured for Australian market.

XX (EXPORT) .. Standard Version.

NON MARK ........ Common Parts.

2. Some printed circuit boards are not supplied as the assembled.

To separate these in this service manual. the stock Nos are not in-
dicated at the ends of the board names. However, the individual parts
on the circuit boards are provided by orders.

3. Since some of capacitors and resistors are omitted from parts lists
in this service manual. refer to the Common Parts List for capacitors

& resistors, which was issued on February 1983.

4. Abbreviations in this service manual are as follows.

oAbbreviations List

C.R. : Carbon Resistor E.B.L. : Low Leak BLPolar

SR. : Solid Resistor Electrolytic Capacitor

Ce.R. : Cement Resistor Ta.C. : Tantalum Capacitor

M.R. : Metal Film Resistor F.C. : Film Capacitor

F.R. : Fusing Resistor M.P. : Matalized Paper Capacitor

N.I.R. : Non-lnflammable Resistor F.C. : Polystyrene Capacitor

AR. : Array Resistor G.C. : Gimmic Capacitor

C.C. : Ceramic Capacitor A.C. : Array Capacitor

C.T. : Ceramic Capacitor. V.Fl. : Variable Resistor
Temperature Compensation S.V.R. : Semi Variable Resistor

E.C. : Electrolytic Capacitor SW. : Switch

E.L. : Low Leak Electrolytic Chip R. : Chip Resistor
Capacitor Chip C. : Chip Capacitor

EB. : Bi-Polar Electrolytic

Capacitor